Question

A body of mass 14 kg acquires an acceleration of 30 m/s² under the action of a force. Calculate the force.

Answer 1

ProvidEd that:

• Mass of body = 14 kg
• Acceleration = 30 m/s sq.

To calculaTe:

• The force

SoluTion:

• The force = 420 N

KnowlEdge required:

• SI unit of mass = kg
• SI unit of acceleration = m/s sq.
• SI unit of force = Newton (N)

UsiNg concept:

• Second law of motion that tell us about the formula to calculate the force.

UsiNg formula:

• ${\small{\underline{\boxed{\pmb{\sf{F \: = ma}}}}}}$

Where, F denotes force, m denotes mass and a denotes acceleration.

RequirEd solution:

$:\implies \sf Force \: = Mass \times Acceleration \\ \\ :\implies \sf F \: = m \times a \\ \\ :\implies \sf F \: = ma \\ \\ :\implies \sf F \: = 14(30) \\ \\ :\implies \sf F \: = 420 \: N \\ \\ :\implies \sf Force \: = 420 \: Newton$

Henceforth, force = 420 Newton

Additional InformaTion:

Force: Push and pull on any object is known as force. Force can be also define as the push or pull on an object that have mass that cause the change in velocity of the object.

Effects of force:

1. Force can move a stationary object.

2. Force can stop a moving object.

3. Force can make the change in the size of the object.

4. Force can make the change in the shape of the object.

5. Force can make the change in the speed of the object.

Types of force: There are two types of force that are balanced force and unbalanced force.

Answer 2

Answer:

Explanation:

Given,

Mass of the body, m = 14 kg

Acceleration of the body, a = 30 m/s²

To Find,

Force, F

Formula to be used,

According to Newton's 2nd Law,

F = ma

Solution,

Putting all the values, we get

F = ma

⇒ F = 14 × 30

⇒ F = 420 N

Hence, the force on body is 420 N.